%\thispagestyle{empty} %fjerner sidetal 
%\chapter{Questionnaire Form}
%\includepdf[pages={1}]{Appendix_A.pdf}

\includepdf[pages=1,pagecommand=\chapter{Questionnaire Form}]{Appendix_B.pdf} \label{questionnaire}
\includepdf[pages=2-,pagecommand={}]{Appendix_B.pdf}